CN210483599U - High-efficient junk mill - Google Patents
High-efficient junk mill Download PDFInfo
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- CN210483599U CN210483599U CN201920807763.5U CN201920807763U CN210483599U CN 210483599 U CN210483599 U CN 210483599U CN 201920807763 U CN201920807763 U CN 201920807763U CN 210483599 U CN210483599 U CN 210483599U
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Abstract
The utility model provides a high-efficient junk mill. The efficient grind shoe comprises a body, a righting mechanism, a cutter head, a circulating water hole and a flow passage groove; the body is a cylinder with an inner cavity, and one end surface of the body is connected with the cutter head; the righting mechanism is arranged on the periphery of the body; the cutter head is a six-petal cutter head and comprises two long cutter heads which are symmetrically arranged and four short cutter heads which are uniformly distributed between the long cutter heads; the circulating water holes comprise a plurality of water holes which are uniformly distributed on the end surface of the cutter head and are communicated with the inner cavity of the body; the overflow groove comprises a plurality of grooves which are uniformly distributed on the periphery of the cutter head and return milling chips to the ground. The utility model discloses well repair is with high-efficient junk mill, the six lamella tool bit project organization of adoption are favorable to milling to the cutting of instrument, improve milling efficiency greatly.
Description
Technical Field
The utility model belongs to the technical field of borehole operation instrument in the oil gas field development, concretely relates to high-efficient junk mill.
Background
The milling shoe is a downhole tool for milling downhole falling objects, and is mainly used for milling downhole falling objects such as joints, drill rods, oil pipes, roller bits and the like.
In current oil field development, conventional junk mill is mostly the structure of welding full alloy in the bottom surface between the basin, and it is when milling the underground junk, under torsion and impact load's effect for the alloy drops easily, and it is inefficient to mill, consequently, needs to develop a high-efficient junk mill to accelerate milling speed, improve the operating efficiency.
SUMMERY OF THE UTILITY MODEL
Based on above background art, the utility model provides a high-efficient junk mill for milling instrument in well can realize the function of milling instrument fast.
In order to realize the above purpose, the utility model adopts the following technical scheme:
a high-efficiency grind shoe comprises a body, a righting mechanism, a tool bit, a circulating water hole and a flow passage groove;
the body is a cylinder with an inner cavity, and one end surface of the body is connected with the cutter head; the righting mechanism is arranged on the periphery of the body;
the cutter head is a six-petal cutter head and comprises two long cutter heads which are symmetrically arranged and four short cutter heads which are uniformly distributed between the long cutter heads; the circulating water holes comprise a plurality of water holes which are uniformly distributed on the end surface of the cutter head and are communicated with the inner cavity of the body;
the overflow groove comprises a plurality of grooves which are uniformly distributed on the periphery of the cutter head and return milling chips to the ground.
Preferably, the stress surface of each cutter head is made of crushed alloy, one surface of each cutter head is connected with a welding rod, and button alloy is distributed on the other surface of each welding rod to serve as a cutting surface.
Preferably, the button alloy is arranged in 3 rows and uniformly distributed on the welding rod.
Preferably, the circulation water holes comprise six evenly distributed between the crushed alloy and the button alloy.
Preferably, the overflow groove comprises six evenly distributed on the periphery of the cutter head.
Preferably, the overflow groove is positioned between the cutter heads, and the groove depth of the overflow groove is gradually reduced from the side close to the button alloy and is converted to be equal to the periphery of the cutter heads.
Preferably, the righting mechanism comprises a plurality of protrusions which are evenly distributed in the circumferential direction.
Preferably, the righting mechanism comprises three protrusions which are evenly distributed in the circumferential direction.
In a preferred scheme of the utility model, the stress surface of each tool bit is made of crushed alloy, one surface of the crushed alloy is connected with a welding rod, and three rows of button alloys are distributed on the other surface of the welding rod to be used as cutting surfaces; the circulating water hole comprises six water holes uniformly distributed between the crushed alloy and the button alloy.
In the preferable scheme, further, the flow passing grooves comprise six flow passing grooves which are uniformly distributed on the periphery of the cutter head, are positioned between the cutter heads and are of an eccentric groove structure; the depth of one side of the overflowing groove close to the button alloy is larger than that of one side of the overflowing groove far away from the button alloy, and the overflowing groove is transited to be level with the periphery of the tool bit.
The utility model discloses well repair is with high-efficient junk mill, the six lamella tool bit project organization of adoption are favorable to milling to the cutting of instrument, improve milling efficiency greatly.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a high-efficiency grind shoe in a preferred embodiment of the invention.
Fig. 2 is a front view of the high-efficiency grind shoe of fig. 1.
Fig. 3 is a side view of the high-efficiency grind shoe of fig. 1.
Description of reference numerals:
1-body; 2-button alloy; 3-welding a rod; 4-crushing the alloy; 5-circulating water holes; 6-a flow groove; 7-righting mechanism.
Detailed Description
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In addition, some directional terms mentioned in the embodiments of the present invention, such as "left", "right", etc., should be interpreted as referring to the placement of the efficient grinding shoe, and should not be construed as limiting the scope of the present invention.
The present invention provides a preferred embodiment, as shown in fig. 1-3; this high-efficient junk mill includes: the body 1, right mechanism 7, tool bit, circulation water hole 5 and overflow groove 6.
The body 1 is a cylinder with an inner cavity, one end surface (the right end in figure 2) of the body is connected with a cutter head, and the other end (the left end in figure 2) of the body can be directly connected with a milling pipe column; the periphery of the body 1 is provided with the righting mechanism 7, and the righting mechanism 7 in the preferred embodiment is provided with three protrusions.
The utility model discloses a tool bit is designed for six-petal tool bit, the whole structure of the tool bit is designed for eccentric structure, two long and four short tool bits are adopted, including two long tool bits which are symmetrically arranged and four short tool bits which are evenly distributed between the long tool bits; the circulating water holes 5 comprise 6 holes which are uniformly distributed on the end surface of the cutter head and are communicated with the inner cavity of the body 1; the overflow groove 6 is evenly distributed in 6 of tool bit periphery, when carrying out milling operation, liquid can be followed circulation water hole 5 and is given the tool bit cooling to can return the milling piece to ground from overflow groove 6. As shown in fig. 1 and 3, the overflow groove 6 is positioned between the cutter heads, and the groove depth of the overflow groove is gradually reduced from the side close to the button alloy 2 and is transited to be level with the periphery of the cutter heads; the whole body presents an inclined curved surface, and the milling efficiency is improved.
As shown in figure 3, the tool bit main body structure is composed of button alloys 2 and welding rods 3, the button alloys 2 are arranged in 3 rows and evenly distributed on the welding rods 3, broken alloys 4 are welded on the stress surface of each tool bit, and a layer of welding flux with the thickness of 1.5mm is welded on the end surface of the body before the broken alloys 4 are welded.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (10)
1. A high-efficiency grind shoe is characterized by comprising a body (1), a righting mechanism (7), a tool bit, a circulating water hole (5) and a flow passage groove (6);
the body (1) is a cylinder with an inner cavity, and one end surface of the body is connected with the cutter head; the righting mechanism (7) is arranged on the periphery of the body (1);
the cutter head is a six-petal cutter head and comprises two long cutter heads which are symmetrically arranged and four short cutter heads which are uniformly distributed between the long cutter heads; the circulating water holes (5) comprise a plurality of water holes which are uniformly distributed on the end surface of the cutter head and are communicated with the inner cavity of the body (1);
the overflow groove (6) comprises a plurality of grooves which are uniformly distributed on the periphery of the cutter head and return milling chips to the ground.
2. The efficient mill shoe as claimed in claim 1, characterized in that the stress surface of each cutter head is made of crushed alloy (4), one surface of the crushed alloy is connected with a welding rod (3), and button alloy (2) is distributed on the other surface of the welding rod (3) to serve as a cutting surface.
3. The high efficiency mill shoe according to claim 2, characterized in that the button alloy (2) is arranged in 3 rows, evenly distributed on the welding rod (3).
4. High efficiency mill shoe according to claim 2, characterized in that the circulation port (5) comprises six evenly distributed between the crushed alloy (4) and the button alloy (2).
5. A high-efficiency mill shoe according to any one of claims 2-4, characterized in that the overflow launder (6) comprises six evenly distributed over the periphery of the bit.
6. The efficient mill shoe as claimed in claim 5, characterized in that the overflow groove (6) is located between the cutter heads, and the groove depth decreases from the side close to the button alloy (2) and transitions to be even with the periphery of the cutter heads.
7. High efficiency mill shoe according to claim 1, characterized in that the righting means (7) comprises a plurality of protrusions evenly distributed circumferentially.
8. The high-efficiency mill shoe as claimed in claim 7, characterized in that the righting means (7) comprises three protrusions evenly distributed circumferentially.
9. The efficient mill shoe as claimed in claim 1, characterized in that the stress surface of each cutter head is made of crushed alloy (4), one surface of each cutter head is connected with a welding rod (3), and three rows of button alloy (2) are distributed on the other surface of each welding rod (3) to serve as cutting surfaces; the circulating water holes (5) comprise six water holes which are uniformly distributed between the crushed alloy (4) and the button alloy (2).
10. The high-efficiency mill shoe as claimed in claim 9, characterized in that the overflow groove (6) comprises six evenly distributed in the periphery of the cutter head, which is located between the cutter heads and is an eccentric groove structure; the depth of one side of the overflow groove (6) close to the button alloy (2) is larger than that of one side far away from the button alloy (2), and the overflow groove is transited to be level with the periphery of the tool bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920807763.5U CN210483599U (en) | 2019-05-31 | 2019-05-31 | High-efficient junk mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920807763.5U CN210483599U (en) | 2019-05-31 | 2019-05-31 | High-efficient junk mill |
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| CN210483599U true CN210483599U (en) | 2020-05-08 |
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| CN201920807763.5U Active CN210483599U (en) | 2019-05-31 | 2019-05-31 | High-efficient junk mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027372A (en) * | 2020-11-12 | 2021-06-25 | 北京博德世达石油技术股份有限公司 | Novel wear-resisting high-efficient junk mill |
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2019
- 2019-05-31 CN CN201920807763.5U patent/CN210483599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027372A (en) * | 2020-11-12 | 2021-06-25 | 北京博德世达石油技术股份有限公司 | Novel wear-resisting high-efficient junk mill |
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